Effect of fallow and system of tillage on crop yield of element of crop rotation

The crop data of the crop rotation link (winter rye, spring wheat with clover seed, clover of first-year use, winter rye) of long-term stationary field experiment (second rotation) are presented. Three systems of fall tillage (dumped, combined, nonmoldboard), kinds of fallow (clean, clean with entering of cattle manure 60 t/ha, green-manure mustard, green-manure clover) are being studied. Nonmoldboard tillage in comparison with the dumped and combined led to a decrease in the grain crops yield on average by experience to 2.75 t/ha. By dumped tillage it amounted to 3.32, combined - 3.07 t/ha of grain units. The meadow clover yield did not depend on the method of tillage - 2.01-2.12 t/ha of grain units. The entering of manure into fallow and clover green-manure fallow ensured the highest yield of winter rye grain - 2.59 and 2.61 t/ha, in the aftereffect of spring wheat - 2.84 and 2.77 t/ha, in control with pure fallow - 2.42 and 2.39 t/ha. The effectiveness of the manure depended on the way it was embedded in fallow...